Question

what is the necessary condition for indices of x in polynomial of x?​

Answer 1

The necessary condition for indices of x in polynomials of x is that they should be non negative integers.

• A non-negative integer is an integer that either is positive or even zero. This is a combination of the real numbers and the zero number.
• If all of the coefficients of x will be negative, then plugging in of any positive value for x will always result in the negative value of the polynomial.
• Thus, the condition of being a non negative integer is essential.